16 | Technical data
Installer reference guide
275
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
R6T Thermistor (refrigerant liquid)
R7T Thermistor (compressor shell)
R8T Thermistor (compressor port)
R9T Thermistor (entering water)
R10T Thermistor (leaving water)
R11T Thermistor (fin)
S1NPH High pressure sensor
S1PH, S2PH High pressure switch
S1PL Low pressure switch
T1A Current transfo
V1R, V2R (A2P) IGBT power module
V3R (A2P) Diode module
X1M, X2M Terminal strip
Y1E Electronic expansion valve (main)
Y3E Electronic expansion valve (injection)
Y1S Solenoid valve (4‑way valve)
Y2S Solenoid valve (low pressure bypass)
Y3S Solenoid valve (hot gas bypass)
Y4S Solenoid valve (liquid injection)
Z1C~Z10C Noise filter (ferrite core)
Z1F~Z4F (A1P, A3P) Noise filter